Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 01:56

General

  • Target
    2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe
  • Size 41KB
  • Sample260908-cc71fabl9v
  • SHA256 19d8010def646be83d1d6c63ff6b8f44621f51b466c25a70e4ff655f6b378f72
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4804

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 41KB
        • SHA256 96ea4ae8703479403eeb1e62d723bf53bce6b4934b4abe1923fa1cc0c81fe3c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1400-0-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1400-1-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1400-2-0x00000000020A0000-0x00000000020A6000-memory.dmp

        memory/1400-10-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1400-3-0x00000000020D0000-0x00000000020D6000-memory.dmp

        memory/4804-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4804-20-0x0000000002090000-0x0000000002096000-memory.dmp